Observations of subpicosecond dynamics in GaAlAs laser diodes

Stix, Michael S.; Kesler, Morris P.; Ippen, Erich P.
June 1986
Applied Physics Letters;6/23/1986, Vol. 48 Issue 25, p1722
Academic Journal
We present results of pump-probe experiments on GaAlAs laser diodes indicating a 0.9-ps relaxation time associated with the device transmission. Subpicosecond, tunable near infrared pulses obtained by fiber compression were used to carry out the experiments. The data strongly support a model in which a nonequilibrium carrier temperature in the active layer is responsible for the observed signal.


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